1 /* crypto/asn1/d2i_pr.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include <openssl/bn.h>
62 #include <openssl/evp.h>
63 #include <openssl/objects.h>
64 #include <openssl/asn1.h>
65 #ifndef OPENSSL_NO_RSA
66 #include <openssl/rsa.h>
68 #ifndef OPENSSL_NO_DSA
69 #include <openssl/dsa.h>
72 #include <openssl/ec.h>
75 EVP_PKEY
*d2i_PrivateKey(int type
, EVP_PKEY
**a
, const unsigned char **pp
,
80 if ((a
== NULL
) || (*a
== NULL
))
82 if ((ret
=EVP_PKEY_new()) == NULL
)
84 ASN1err(ASN1_F_D2I_PRIVATEKEY
,ERR_R_EVP_LIB
);
91 ret
->type
=EVP_PKEY_type(type
);
94 #ifndef OPENSSL_NO_RSA
96 if ((ret
->pkey
.rsa
=d2i_RSAPrivateKey(NULL
,
97 (const unsigned char **)pp
,length
)) == NULL
) /* TMP UGLY CAST */
99 ASN1err(ASN1_F_D2I_PRIVATEKEY
,ERR_R_ASN1_LIB
);
104 #ifndef OPENSSL_NO_DSA
106 if ((ret
->pkey
.dsa
=d2i_DSAPrivateKey(NULL
,
107 (const unsigned char **)pp
,length
)) == NULL
) /* TMP UGLY CAST */
109 ASN1err(ASN1_F_D2I_PRIVATEKEY
,ERR_R_ASN1_LIB
);
114 #ifndef OPENSSL_NO_EC
116 if ((ret
->pkey
.eckey
= d2i_ECPrivateKey(NULL
,
117 (const unsigned char **)pp
, length
)) == NULL
)
119 ASN1err(ASN1_F_D2I_PRIVATEKEY
, ERR_R_ASN1_LIB
);
125 ASN1err(ASN1_F_D2I_PRIVATEKEY
,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE
);
129 if (a
!= NULL
) (*a
)=ret
;
132 if ((ret
!= NULL
) && ((a
== NULL
) || (*a
!= ret
))) EVP_PKEY_free(ret
);
136 /* This works like d2i_PrivateKey() except it automatically works out the type */
138 EVP_PKEY
*d2i_AutoPrivateKey(EVP_PKEY
**a
, const unsigned char **pp
,
141 STACK_OF(ASN1_TYPE
) *inkey
;
142 const unsigned char *p
;
145 /* Dirty trick: read in the ASN1 data into a STACK_OF(ASN1_TYPE):
146 * by analyzing it we can determine the passed structure: this
147 * assumes the input is surrounded by an ASN1 SEQUENCE.
149 inkey
= d2i_ASN1_SET_OF_ASN1_TYPE(NULL
, &p
, length
, d2i_ASN1_TYPE
,
150 ASN1_TYPE_free
, V_ASN1_SEQUENCE
, V_ASN1_UNIVERSAL
);
151 /* Since we only need to discern "traditional format" RSA and DSA
152 * keys we can just count the elements.
154 if(sk_ASN1_TYPE_num(inkey
) == 6)
155 keytype
= EVP_PKEY_DSA
;
156 else if (sk_ASN1_TYPE_num(inkey
) == 4)
157 keytype
= EVP_PKEY_EC
;
158 else keytype
= EVP_PKEY_RSA
;
159 sk_ASN1_TYPE_pop_free(inkey
, ASN1_TYPE_free
);
160 return d2i_PrivateKey(keytype
, a
, pp
, length
);